Subsoil-plow.



No. 822,847. PATENTED JUNE 5, 1906.

E. KRAAI.

SUBSOIL PLOW.

APPLIOATION FILED JULYIS, 1905.

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No. 822,847. I PATENTED JUNE 5, 1906. B. KRAAI.

SUBSOIL PLOW.

APPLICATION FILED JULY 18, 1905.

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EVERT KRAAI, OF HOLLY, COLORADO.

SUBSOlL-PLOW.

Specification of Letters Patent.

Patented June 5, 1906.

Application filed July 18, 1905. Serial No. 270,263.

To all whom it may concern.-

Be it known that I, EVERT KRAAI, a citizen of the United States,residing at Holly, in the county of Prowers, State of Colorado, haveinvented certain new and useful Improvements in Subsoil-Plows; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

This invention relates to plows The object of the invention is toprovide an exceedingly simple, inexpensive, durable, and efficientdevice of the character stated.

In the drawings, Figure 1 is a side elevation of my invention, thelandside being broken away to illustrate the foot at the bottom of thestandard of the beam. Fig. 2 is a top plan view. Fig. 3 is a sectionalview through the plowshare and landside, illustrating the depending lugof the latter. Fig. 4 is a detail view of the clamping elements detachedfrom the plow. Fig. 5 is a sectional view through the marker,illustrating its concavoconvex formation and also showing itssupporting-arm; and Fig. 6 is a detail view of the brace.

Referring now more particularly to the accompanying drawings, thereference character 1 designates a beam whose rear end is bentdownwardly to form a standard 2 and then bent inwardly to form the foot3, to which foot is connected intermediate its ends the landside 4.

The plowshare employed with my invention consists of two blade parts,the part 5 being narrower than the part 6, the forward edges 7 and 8,respectively, of the blade parts diverging rearwardly from each'other,the said plowshare being slotted from rear toward the point 9 and indirect alinement with the latter, as indicated by the referencecharacter 10. The parallel longitudinal edges 11 and 12, respectively,of the parts 5 and 6 are then bent downwardly into engagement with eachother to form an elongated lug13, to which is connected the forward endof the landside 4, the latter at its forward end having an upper flange14, through which and the portion 6 of the plowshare is passed asuitable fastening 15. It will now be understood that the landside issecured to the plowshare and also to the aforesaid lug 13 of the latter,it being observed that the lug 13 tapers with its lower edge inalinement with the lower ends of the landside 4.

The standard 2 of the beam is provided with a perforation 16, in whichis inserted the bent end 17 of the brace 18, having its opposite lowerend bent in the opposite plane of the bent end 17 for insertion in theperforation 20 of the landside 4.

Clamping-plates 21 and 22 are secured to opposite sides of the beam 1 atthe beginning of the downward bend 2 thereof and held thereon by meansof the upper and lower bolts 23 and 24, arranged, respectively, aboveand below the corresponding edges of the beam, there being suitable nuts25 secured to said bolts for clamping purposes. It will be observed thatthe bolt 24 fits directly against the beam or its standard with theupper bolt 23 in spaced relation therewith for the receptiontherebetween of the downwardly-inclinedarm 26, whose lower end is bent,as at 27, to form an axle for the reception of the disk marker 28, itbeing understood that the arm 26 is clamped between the clampingplates21 and 22 and the beam and the upper bolt 23.

I might state at this time that my improved plow is of such characterthat the root of the products will be cut off, permitting the crownsthereof to remain up, so that they may dry before they are turned underthe ground, for the crowns of certain products will reproduce if they beturned under before drying, the drying of the crowns resulting in thedying thereof. It is for this purpose that I arrange the plowshare insubstantially a horizontal plane with respect to the plow-beam. In orderto loosen the earth around the roots, I provide a series of fingers 29at the rear of the plowshare, connecting the inner ends of the fingerswith the perforations 30 at the rear edge of the plowshare. By looseningthe dirt around the roots the latter may be readily extracted from theground.

From the foregoing it will be readily understood that the marker 27 maybe readily adjusted between the clamping-plates 21 and 22, and I mightstate that this marker being in the form of a disk of the concavo-convextype will not only serve as a marker, but may also serve in the capacityof a surface instrument for a second plowing to move the crowns towardthe previous furrows, so that they will be positively covered.

What is claimed is 1. A plow including a beam, a landside connected tothe beam and having a flange on its forward end, a plowshare consistingof two blade parts having longitudinal edges bent downwardly andconnected to the forward end of the landside, one of the said bladeparts being secured to and resting upon 5 the flange of the saidlandside, a brace between the landside and the beam, and a disk markeradjustably connected to the beam.

2. A plow including a beam, a landside associated with the beam, aplowshare having is a depending lug secured to the landside, fingerssecured to the plowshare, a brace between the landside and the beam, anda disk marker adjustably connected to the beam.

In testimony whereof I afiiX my signature in presence of two witnesses.

EVERT KRAAI.

Witnesses:

H. R. MALTBY, J. B. HARDEN.

